Heat Advisory — Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM Extreme Heat Warning — Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM Extreme Heat Watch 8:00 PM

Walthall County, Mississippi, United States

Last updated: 4:34 PM CDT  ·  Refresh
37°C
Feels like 38°
Clear
▲ 38°  /  ▼ 23°
Wind
3 mph SSW
Humidity
34%
Dew Point
19°
Pressure
29.75 inHg
Visibility
10 mi
UV Index
7.2
Cloud Cover
4%
Sunrise
6:25 AM
Sunset
7:43 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Walthall County is currently clear at 37°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2076 J/kg) — isolated convective development possible. Sunrise: 6:25AM · Sunset: 7:43PM.

Alerts

Heat Advisory
Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Expires 8:00 PM
Extreme Heat Warning
Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Expires 8:00 PM
Extreme Heat Watch
Expires 8:00 PM
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
37°
3%
5 PM
38°
3%
6 PM
37°
3%
7 PM
34°
3%
8 PM
33°
3%
9 PM
29°
3%
10 PM
28°
3%
11 PM
28°
3%
12 AM
27°
3%
1 AM
26°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
25°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
30°
3%
11 AM
33°
3%
12 PM
34°
3%
1 PM
36°
3%
2 PM
36°
3%
3 PM
38°
3%
7-Day Forecast
Today
38° 23°
Clear.
Sat
39° 23°
Mostly Clear.
Sun
41° 24°
Clear.
Mon
40° 25°
Clear with a 43% chance of rain.
Tue
41° 24°
Drizzle, 50% chance.
Wed
41° 23°
Drizzle, 50% chance.
Thu
41° 22°
Drizzle, 50% chance.
TimeTempConditionsPrecipWindHumidity
Now 37° Clear 3% 3 mph SSW 34%
5 PM 38° Clear 3% 3 mph SSW 34%
6 PM 37° Clear 3% 3 mph SSW 38%
7 PM 34° Clear 3% 3 mph SW 42%
8 PM 33° Clear 3% 4 mph SW 47%
9 PM 29° Clear 3% 4 mph SW 53%
10 PM 28° Clear 3% 5 mph SW 59%
11 PM 28° Clear 3% 5 mph SW 64%
12 AM 27° Clear 3% 5 mph SW 70%
1 AM 26° Clear 3% 5 mph SW 77%
2 AM 26° Clear 3% 5 mph WSW 82%
3 AM 26° Clear 3% 5 mph WSW 88%
4 AM 25° Clear 3% 4 mph WSW 90%
5 AM 23° Clear 3% 4 mph W 92%
6 AM 23° Clear 3% 3 mph W 94%
7 AM 24° Clear 3% 4 mph WNW 88%
8 AM 26° Clear 3% 5 mph WNW 78%
9 AM 28° Clear 3% 5 mph WNW 68%
10 AM 30° Clear 3% 5 mph WNW 61%
11 AM 33° Clear 3% 4 mph WNW 56%
12 PM 34° Clear 3% 4 mph WNW 52%
1 PM 36° Clear 3% 4 mph WNW 49%
2 PM 36° Clear 3% 4 mph WNW 49%
3 PM 38° Mostly Clear 3% 5 mph WNW 48%
15-Day Forecast
Today
8/14
Clear
3%
23°
38°
Sat
8/15
Mostly Clear
3%
23°
39°
Sun
8/16
Clear
8%
24°
41°
Mon
8/17
Clear
43%
25°
40°
Tue
8/18
Drizzle
50%
24°
41°
Wed
8/19
Drizzle
50%
23°
41°
Thu
8/20
Drizzle
50%
22°
41°
Fri
8/21
Drizzle
60%
23°
42°
Sat
8/22
Drizzle
60%
22°
40°
Sun
8/23
Drizzle
60%
21°
41°
Mon
8/24
Drizzle
60%
22°
40°
Tue
8/25
Drizzle
60%
23°
40°
Wed
8/26
Drizzle
60%
23°
41°
Thu
8/27
Drizzle
60%
23°
41°
Fri
8/28
Drizzle
60%
23°
40°
55
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
55 AQI 11.4 µg/m³
O3
Ground-level ozone
23 AQI 26 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 55 Moderate 23 55
Sun 48 Good 26 48
Mon 45 Good 26 45
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Aug 14, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE882 J/kg
MLCAPE74 J/kg
MUCAPE882 J/kg
SBCIN-78 J/kg
MLCIN-349 J/kg
Lifted Index-2.7
Kinematics
0–6 km Shear8 kt
0–1 km Shear1 kt
Eff. Shear9 kt
0–1 km SRH4
0–3 km SRH20
Eff. SRH20
Storm Motion100° @ 14 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index0.6
Thermo & Levels
PWAT1.08 in
0–3 km LR8.0 °C/km
700–500 LR6.3 °C/km
Total Totals42.9
LCL779 hPa
LFC573 hPa
EL189 hPa
Freezing Lvl17,054 ft